Benchmark results

David Collier-Brown davecb at Canada.Sun.COM
Wed Feb 3 21:05:32 GMT 1999

Jeremy wrote: 
> What NetBench actually measures in a large part is the
> speed of the client memory cache :-) :-) :-).
> The only reasonable benchmark would be one based on
> open code that generated the CIFS calls via direct
> socket calls - not going through a Windows redirector
> (which is broken in *so many* subtle and not-so-subtle
> ways :-). The smbtorture code would be a good start
> here.

	Literally what I was thinking of, for my
	next book project.

	I'm rereading the code and papers from the nfsstone->laddis
	historical period, collecting half-baked ideas, and
	studying up on how to cook them properly.

	The more-baked-than-not parts:
	     1.	Based on smbtorture-style calls
	     2.	Driven from one of two distributions
		of user activities: one pure nfsstone (ie,
		actually a mix dating back to musbus), and 
		another based on the mix in netbench (as
		reverse analyzed by netapp in the "
		Adding Response Time Measurement of CIFS 
		File Server Performance to NetBench" paper.
	     3. In boringly simple c.
	The flaky ideas are things like "yeilds comparable
	numbers to XXX", which requires both some tuning knobs
	and a real understanding of the XXX mixes in question.

David Collier-Brown,  | Always do right. This will gratify some people
185 Ellerslie Ave.,   | and astonish the rest.        -- Mark Twain
Willowdale, Ontario   |
Work: (905) 477-0437 Home: (416) 223-8968 Email: davecb at

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